An algebraic observer for leak detection and isolation in plastic pipelines
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Date
2013-07-17Author
Navarro, Adrián
Begovich, Ofelia
Besancon, Gildas
Sánchez-Torres, Juan D.
Patiño-Murillo, Julián
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In the continuation of authors' studies on leak diagnosis in pipelines, a new model-based Leak Detection and Isolation (LDI) algorithm is designed. This system only uses measures of flow and pressure coming from sensors placed at the ends of a pipeline. The present approach is based on a finite nonlinear pipeline model, and extended with variables related to the leak. On this basis, the purpose here is to investigate the use of a so-called algebraic observer to estimate the leak position and its magnitude. The corresponding observer design is thus presented, and its performances are illustrated both with simulation results, and experimental ones, with data taken from a real pipeline prototype.Consejo Nacional de Ciencia y Tecnología
Institut Universitaire de France
Universidad Nacional de Colombia